* Add copy-to-clipboard button and JS
* Ignore line numbers if present
* Rewrite heading permalink code to use vanilla JS
* README: Add credits to zenorocha/clipboard.js (MIT License)
@iBug really wants a place here in the Credits section :P
* Add .no-copy for hiding the button, update docs
* Add td.rouge-code to selectors
* Fix navigator.clipboard branch
* Add screenreader text for copy button
* Restore focus to the button after copying
* Add site-wide enable switch
IE9 is absolutely, completely, totally dead. it's marketshare is less than 0.1%.
REF: https://caniuse.com/usage-table
Save some bytes in the HTML for all users by removing the fallback inline CSS.
* add a "hide" value in config for atom
* Update footer to use param
* update header to use param
* Update docs to note configuration
* undo formatting
* use unless syntax
* unless syntax and indentation
* indentation
* Use relative_url and absolute_url where possible
Drops the `contains "://"` check, adopt Jekyll 3.7
Ref: https://github.com/mmistakes/minimal-mistakes/pull/2385#issuecomment-579882236
* One more unneeded {% assign %}
* Remove one more assign as noted by mmistakes
* Consolidate 4 more captures
* Consolidate an extra assign on "active" class
Where it makes sense replace asset paths and navigation related paths with `relative_url` filter.
Leave SEO related `<head>` elements and social sharing links as `absolute_url`.
Fixes#1588
